Can you keep the water in the pool over the winter?
As temperatures drop and days get shorter, pool owners face the recurring question of whether to drain their pool or keep the water in it during the winter months. While some choose to drain the pool to avoid potential damage from freezing temperatures, others wonder if it's possible to leave the water in the pool and simply winterize it. In this blog post, we will explore the advantages and disadvantages of keeping water in the pool over the winter and provide guidance on how to properly winterize your pool for the colder months ahead.
Advantages of keeping water in the pool during winter
1. Structural integrity: Leaving water in the pool can help maintain the structural integrity of the pool shell. The weight of the water helps counteract the pressure from the surrounding soil, preventing the pool walls from shifting or cracking due to frost heave.
2. Protection against damage: A pool filled with water is less susceptible to damage from freezing temperatures compared to an empty pool. The water acts as a buffer against extreme cold and helps prevent damage to the pool's surface, plumbing system, and equipment.
3. Easier opening in the spring: Keeping water in the pool over the winter can streamline the process of opening the pool in the spring. Instead of refilling the pool with water and balancing the chemicals, pool owners can simply remove the winter cover, clean the pool, and adjust the water chemistry as needed.
Disadvantages of keeping water in the pool during winter
1. Algae growth: Without proper maintenance and circulation, stagnant water can become a breeding ground for algae during the winter months. Algae growth can lead to water discoloration, surface coating, and increased chlorine consumption when the pool is opened in the spring.
2. Potential damage to equipment: Freezing temperatures can pose a risk of damage to pool equipment and plumbing if they are not properly winterized. Water left in the pool can expand when it freezes and put pressure on pipes, filters, and pumps, potentially causing cracks or leaks.
3. Increased chemical consumption: Even with the pool covered, water chemistry can still fluctuate during the winter due to factors like sunlight exposure, debris accumulation, and organic contamination. Maintaining the right chemical balance may require regular monitoring and adjustments during the winter months.
4. Risk of liner damage: Vinyl liners can be sensitive to damage from freezing temperatures if not properly winterized. Ice expansion and contraction can cause the liner to stretch, crack, or wrinkle, leading to costly repairs or replacement.
Tips for winterizing your pool with water remaining
If you choose to keep water in your pool over the winter, it's important to properly winterize the pool to minimize the risk of damage and ensure a smooth opening in the spring. Here are some tips for winterizing your pool with water remaining:
1. Balance the water chemistry: Test the water and adjust the pH, alkalinity, and calcium hardness to the recommended range before closing the pool for winter. Shock the pool with a chlorine-based shock treatment to eliminate any remaining contaminants.
2. Add winter chemicals: Consider adding winter chemicals, such as algaecide and stain preventer, to prevent algae growth and protect against stains during the winter months.
3. Install a winter cover: Invest in a high-quality winter cover for the pool to protect the water from debris, sunlight, and harsh weather conditions. Ensure the cover is securely fastened to prevent it from blowing off or collapsing under snow and ice.
Monitor the water level: Keep an eye on the water level throughout the winter and top it up as needed to prevent damage to the pool skimmer and circulation system.
4. Insulate the plumbing system: Insulate exposed plumbing and equipment to protect them from freezing temperatures. Use pool antifreeze to flush the pipes and prevent water from freezing inside them.
Conclusion
While it is possible to keep water in the pool over the winter, careful planning and preparation are required to minimize the risk of damage and ensure proper winterization. By following the tips outlined above and staying vigilant about monitoring water chemistry and equipment during the winter months, pool owners can protect their investment and enjoy a hassle-free opening when warmer weather arrives. Whether you choose to keep water in your pool or drain it for the winter, proper maintenance and winterization are key to preserving the lifespan and enjoyment of your pool year-round.
